Inkjet printhead comprising contractible nozzle chambers

摘要

An inkjet printhead having a plurality of nozzle assemblies is provided. Each nozzle assembly comprises a nozzle chamber for ink to be ejected. The chamber includes an ink inlet for fluid communication with an ink reservoir and a nozzle through which ink from the chamber can be ejected. Each nozzle assembly also includes at least one thermal actuator for contracting the chamber, such that ink is ejected through the nozzle.